例句：The reforms of enterprises are now at the critical moment.
现在企业的改革正处在紧要关头。
critic n. 批评家，评论家，吹毛求疵者
例句：Derek was not satisfied with the drama critic panning his new play.
德里克不满于这位戏剧批评家对自己新剧本的苛评。
criticism n.批评，批判
例句：Such a questionable assertion is sure to provoke criticism.
这种有问题的主张肯定会招致非议。
criticize v. 批评，责备
例句：You should not criticize the little boy so harshly in his face.
你不应该当面这么严厉地批评那个小男孩。
crucial adj.至关紧要的
例句：The cylinder is a crucial part of the washing machine.
滚筒是洗衣机必不可少的部分。
vital adj. 生死攸关的，重大的，生命的，生机的，至关重要的，所必需的
例句：The government saw the introduction of new technology as vital.
政府认为引进新技术至关重要。
essential adj. 本质的，实质的，基本的，精华的 n.本质，实质，要素，要点
例句：In considering this problem, you should grasp its essentials.
在考虑这一问题时，你应当抓住实质。
essence n.基本，[哲]本质，香精
例句：The two things are the same in outward form but different in essence.
那两样东西在外表上相同，但在本质上不同。
decisive adj. 决定性的
例句：The report brought about a decisive change in the whole policy.
这个报告使整个方针发生了决定性的变化。
